[Question] SuspendToDisk Feature on ARM ?

[Question] SuspendToDisk Feature on ARM ?

[sumeet linux]

Hi List,

Does there exists a support for Suspend To Disk (Hibernate) for ARM
platforms?
I have been googling for it but could not find any information other than
some links to the suspend2 support for some ancient kernels.
Can anyone provide any clue on how much effort is required to implement this
feature to ARM architecture ?

Thanks in advance.

Regards,
Sumeet
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[Question] SuspendToDisk Feature on ARM ?

[Eric Miao]

On Thu, Jun 17, 2010 at 10:08 PM, sumeet linux <sumeet4linux@gmail.com> wrote:
> Hi List,
>
> Does there exists a support for Suspend To Disk (Hibernate) for ARM
> platforms?
> I have been googling for it but could not find any information other than
> some links to the suspend2 support for some ancient kernels.
> Can anyone provide any clue on how much effort is required to implement this
> feature to ARM architecture ?
>

Marvell has done a great job on this for a preliminary enabling on their Dove
processor, please have a look into:

http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-lucid.git;a=shortlog;h=refs/heads/mvl-dove

arch/arm/mach-dove/swsusp.S

The code, mostly, is generic enough to be made common if you are
interested and have other platforms (with HDD or large NAND) to
test. x86 is, of course, the reference.